Aging behavior and strengthening mechanisms of coarsening resistant metastable θ'precipitates in an Al–Cu alloy

S Bahl, L Xiong, LF Allard, RA Michi, JD Poplawsky… - Materials & Design, 2021 - Elsevier
Abstract An Al–Cu alloy micro-alloyed with Mn and Zr (ACMZ) was examined to understand
the thermal stability and strengthening mechanism of metastable θ'-Al 2 Cu precipitates with …

Deformation mechanisms of Mg-Ca-Zn alloys studied by means of micropillar compression tests

J Wang, Y Chen, Z Chen, J Llorca, X Zeng - Acta Materialia, 2021 - Elsevier
The effect of Ca and Zn in solid solution on the critical resolved shear stress (CRSS) of basal
slip, tensile twinning and pyramidal slip in Mg alloys has been measured through …

Role of the solidification cells on the yield strength of the Al-Si-Mg alloy manufactured using laser powder bed fusion: A micropillar compression study

SH Li, Y Zhao, U Ramamurty - Scripta Materialia, 2023 - Elsevier
To ascertain the role of the solidification cell structures on the mechanical performance of Al-
Si-(Mg) alloys processed using the laser powder bed fusion (LPBF) technique, micropillar …

Precipitation phenomena and strengthening mechanism of Al–Cu alloys deposited by in-situ rolled wire-arc additive manufacturing

Z Wang, Y Gao, J Huang, C Wu, G Wang… - Materials Science and …, 2022 - Elsevier
We reported the precipitation phenomena and strengthening mechanism of Al–Cu alloys
deposited by in-situ rolled wire-arc additive manufacture (WAAM) technology. The results …

Prediction of shear strength of cluster-strengthened aluminum with multi-scale approach describing transition from cutting to bypass of precipitates by dislocations

EV Fomin, AE Mayer, VS Krasnikov - International Journal of Plasticity, 2021 - Elsevier
We investigate the deformation of aluminum alloy containing copper in the form of fine Al-Cu
clusters 1–4 nm in diameter with multiscale approach. A part of these precipitates (clusters of …

Superposed hardening from precipitates and dislocations enhances strength-ductility balance in Al-Cu alloy

J Yang, C Liu, P Ma, L Chen, L Zhan, N Yan - International Journal of …, 2022 - Elsevier
The age hardening response and tensile properties in an Al-Cu alloy pre-deformed by 20-
80% and post-aged at 120-165° C have been examined to study the effect of mixed …

Microstructural evolution and strengthening mechanisms in a heat-treated additively manufactured Al–Cu–Mn–Zr alloy

RA Michi, K Sisco, S Bahl, LF Allard, KB Wagner… - Materials Science and …, 2022 - Elsevier
The microstructural and strength evolution of an additively manufactured Al-8.6 Cu-0.5 Mn-
0.9 Zr alloy upon aging at 300, 350, and 400° C is investigated. The strengthening phases of …

Effect of grain-boundary θ-Al2Cu precipitates on tensile and compressive creep properties of cast Al–Cu–Mn–Zr alloys

S Bahl, JU Rakhmonov, C Kenel, DC Dunand… - Materials Science and …, 2022 - Elsevier
Tensile and compressive creep tests were performed at 300° C on high-temperature Al–Cu–
Mn–Zr (ACMZ) alloys with 6 wt% Cu (6Cu) and 9 wt% Cu (9Cu) to evaluate the effect on …

Microstructures, mechanical properties, and aging behavior of hybrid-sized TiB2 particulate-reinforced 2219 aluminum matrix composites

L Li, Z Han, M Gao, S Li, H Wang, H Kang… - Materials Science and …, 2022 - Elsevier
Particulate-reinforced aluminum matrix composites are widely used owing to their
advantageous comprehensive performance. For these composites, aging treatment is an …

Investigations on the interface-dominated deformation mechanisms of two-dimensional MAX-phase Ti3Al (Cu) C2 nanoflakes reinforced copper matrix composites

X Zhang, D Zhao, R Shi, S Zhu, L Ma, C He, N Zhao - Acta Materialia, 2022 - Elsevier
Abstract Two-dimensional (2D) materials showing the giant advantage over their bulk
counterparts are believed to be the ideal reinforcement for metal matrix composites …